﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Add:Calculate
    {
        public int sum { get; set; }
        public override void Cal()
        {
            sum = A + B;

            Console.WriteLine("{0} + {1} = {2}", A, B, sum);
        }
    }
}
